Letter Sequence RAI |
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|
Initiation
- Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request
- Acceptance, Acceptance, Acceptance, Acceptance
- Supplement, Supplement, Supplement, Supplement, Supplement, Supplement, Supplement, Supplement, Supplement, Supplement, Supplement
Results
Other: ML071620334, ML073320383, ML073390289, ML073390306, ML081000038, PLA-6187, Response for Additional Information Requested in Regard to Proposed License Amendment No. 285, Constant Pressure Power Uprate Environmental, PLA-6255, Proposed License Amendments 285 and 253, Constant Pressure Power Uprate Application Regarding Steam Dryer Flow Effects Verbal and Confirmatory Requests for Additional Information Responses, PLA-6266, Proposed License Amendment No. 285 for Unit 1, License No. NPF-14 & Proposed License Amendment No. 253 for Unit 2, License No. NPF-22, Extended Power Uprate Application Regarding Change to Technical Specification SR 3.7.1 - RHRSW and UHS, PLA-6370, License Renewal Application, Amendment to Section 4.2.2, PLA-6633, Providing Notice That the License Conditions 2.C.(36)(a)3, 2.C.(36(b)7 & 2.C.(36)(f) Have Been Met, PLA-6876, Th Rio Steam Dryer Visual Inspection Report, PLA-7047, Th Rio Steam Dryer Visual Inspection Report
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MONTHYEARML0716203342006-01-24024 January 2006 GE Ne 0000-0038-8052 Susq-EPU-T506-MSLHiFlo-Calc-2006, Revision 0, Instrument Limits Calculation, PPL Susquehanna, LLC Susquehanna Steam Electric Station Units 1 and 2, Main Steam Line High Flow MSIV Isolation. Project stage: Other ML0632500922006-11-21021 November 2006 Extended Power Uprate Acceptance Review Project stage: Acceptance Review PLA-6138, Proposed License Amendments 285 & 253, Constant Pressure Power Uprate - Supplement2006-12-0404 December 2006 Proposed License Amendments 285 & 253, Constant Pressure Power Uprate - Supplement Project stage: Supplement ML0710400302006-12-12012 December 2006 Pennsylvania Fish and Boat Commission Threatened and Endangered Species Project stage: Request PLA-6146, Proposed License Amendment No. 285 for Unit 1 Operating License No. NPF-14 and Proposed License Amendment No. 253 for Unit 2 Operating License No. NPF-22 Re Constant Pressure Power Uprate -Supplement2006-12-26026 December 2006 Proposed License Amendment No. 285 for Unit 1 Operating License No. NPF-14 and Proposed License Amendment No. 253 for Unit 2 Operating License No. NPF-22 Re Constant Pressure Power Uprate -Supplement Project stage: Supplement ML0700800322007-01-0505 January 2007 Extended Power Uprate (EPU) Acceptance Review Results Project stage: Acceptance Review ML0703201532007-02-0808 February 2007 PPL Susquehanna, LLC - Request for Withholding of Proprietary Information from Public Disclosure for Susquehanna Steam Electric Station, Units 1 and 2 Project stage: Withholding Request Acceptance ML0703201762007-02-0808 February 2007 PPL Susquehanna, LLC - Request for Withholding of Proprietary Information from Public Disclosure for Susquehanna Steam Electric Station, Units 1 and 2 Project stage: Withholding Request Acceptance PLA-6155, Proposed License Amendment Nos. 285 and 253, Constant Pressure Power Uprate Supplement2007-02-13013 February 2007 Proposed License Amendment Nos. 285 and 253, Constant Pressure Power Uprate Supplement Project stage: Supplement ML0704301392007-03-0101 March 2007 PPL Susquehanna, LLC-Request for Withholding Information from Public Disclosure for Susquehanna Steam Electric Station, Units 1 and 2 (TAC Nos. MD3309 and MD3310) Project stage: Withholding Request Acceptance PLA-6163, Proposed License Amendment Re Constant Pressure Power Uprate - Supplement2007-03-14014 March 2007 Proposed License Amendment Re Constant Pressure Power Uprate - Supplement Project stage: Supplement ML0707304972007-03-15015 March 2007 Request for Additional Information - Extended Power Uprated Application Regarding Turbine Generator Review Project stage: RAI ML0707303892007-03-19019 March 2007 Request for Additional Information (RAI) - Susquehanna, Units 1 and 2 - Extended Power Uprate Application Project stage: RAI ML0707305682007-03-20020 March 2007 (SSES 1 and 2), Request for Additional Information (RAI) - Extended Power Uprate Application Regarding Steam Dryer and Flow Effects Project stage: RAI PLA-6172, Proposed License Amendment for Constant Pressure Power Uprate - Supplement PLA-61722007-03-22022 March 2007 Proposed License Amendment for Constant Pressure Power Uprate - Supplement PLA-6172 Project stage: Supplement ML0708608662007-03-29029 March 2007 RAI, Extended Power Uprate Application; Vessels and Internals Technical Review (TAC Nos. MD3309 and Md3310) Project stage: RAI ML0710001412007-04-10010 April 2007 Request for Additional Information (RAI) - Susquehanna Steam Electric Station, Units 1 and 2 (SSES 1 and 2) - Extended Power Uprate Application Piping and Nondestructive Examination Technical Review Project stage: RAI ML0710001262007-04-12012 April 2007 Request for Additional Information (RAI) - Susquehanna Steam Electric Station, Units 1 and 2 (SSES 1 and 2) - Extended Power Uprate Application Operator Licensing and Human Performance Technical Review (TAC Nos. MD3309 and MD3310) Project stage: RAI ML0710300402007-04-12012 April 2007 Request for Additional Information (RAI) - Susquehanna Steam Electric Station, Units 1 and 2 (SSES 1 and 2) - Extended Power Uprate Application Electrical Engineering Technical Review (TAC Nos. MD3309 and MD3310) Project stage: RAI ML0710300312007-04-12012 April 2007 Request for Additional Information (RAI) - Susquehanna Steam Electric Station, Units 1 and 2 (SSES 1 and 2) - Extended Power Uprate Application Materials and Chemical Engineering Technical Review Project stage: RAI ML0710202982007-04-12012 April 2007 Request for Additional Information (RAI) - Susquehanna Steam Electric Station, Units 1 and 2 (SSES 1 and 2) - Extended Power Uprate Application Health Physics Technical Review Project stage: RAI ML0710400322007-04-12012 April 2007 Pennsylvania Fish and Boat Commission Threatened and Endangered Species Project stage: Request ML0710400252007-04-12012 April 2007 Pennsylvania Efacts Project stage: Request ML0710400222007-04-12012 April 2007 PA Dcnr Wild Resource Conservation Program - Regal Fritillary Project stage: Request ML0710400262007-04-12012 April 2007 EPA Envirofacts Project stage: Request PLA-6174, Constant Pressure Power Uprate - PLA-61742007-04-13013 April 2007 Constant Pressure Power Uprate - PLA-6174 Project stage: Request ML0710203152007-04-16016 April 2007 (SSES 1 and 2), Request for Additional Information (Rai), - Extended Power Uprate Application Balance-of-Plant Physics Technical Review Project stage: RAI ML0710601352007-04-18018 April 2007 Request for Additional Information, Extended Power Uprate Application Safety-Related Pumps and Valves and Mechanical Equipment Environmental Qualification Project stage: RAI PLA-6187, Response for Additional Information Requested in Regard to Proposed License Amendment No. 285, Constant Pressure Power Uprate Environmental2007-04-23023 April 2007 Response for Additional Information Requested in Regard to Proposed License Amendment No. 285, Constant Pressure Power Uprate Environmental Project stage: Other PLA-6186, Proposed License Amendment Nos. 285 and 253, Extended Power Uprate Application Extended Power Uprate Application Vessels and Internals Technical Review Request for Additional Information Responses2007-04-26026 April 2007 Proposed License Amendment Nos. 285 and 253, Extended Power Uprate Application Extended Power Uprate Application Vessels and Internals Technical Review Request for Additional Information Responses Project stage: Request ML0711600672007-04-27027 April 2007 Request for Additional Information (RAI) Extended Power Uprate Application Probabilistic Risk Assessment Licensing Review Project stage: RAI ML0711504712007-04-27027 April 2007 Request for Additional Information (Rai), Extended Power Uprate Application Containment and Ventilation Technical Review Project stage: RAI ML0711403432007-04-27027 April 2007 Request for Additional Information (RAI) - Susquehanna Steam Electric Station, Units 1 and 2) - Extended Power Uprate Application Instrumentation and Controls Technical Review Project stage: RAI ML0711604062007-04-30030 April 2007 Request for Additional Information (Rai), Extended Power Uprate Application Vessels and Internals Integrity Technical Review Project stage: RAI ML0710900722007-04-30030 April 2007 Request for Additional Information (Rai), Extended Power Uprate Application Mechanical and Civil Engineering Technical Review Project stage: RAI PLA-6191, Proposed License Amendment Nos. 285 and 253, Extended Power Uprate Application Piping and Nondestructive Examination Technical Review Request for Additional Information Responses2007-05-0303 May 2007 Proposed License Amendment Nos. 285 and 253, Extended Power Uprate Application Piping and Nondestructive Examination Technical Review Request for Additional Information Responses Project stage: Request PLA-6194, Proposed License Amendments 285 and 253, Extended Power Uprate Application Health Physics Technical Review, Request for Additional Information Responses2007-05-0909 May 2007 Proposed License Amendments 285 and 253, Extended Power Uprate Application Health Physics Technical Review, Request for Additional Information Responses Project stage: Request PLA-6195, Extended Power Uprate Application Electrical Engineering Technical Review Request for Additional Information Responses2007-05-0909 May 2007 Extended Power Uprate Application Electrical Engineering Technical Review Request for Additional Information Responses Project stage: Request ML0712906522007-05-14014 May 2007 Request for Additional Information (RAI) - Susquehanna Steam Electric Station, Units 1 and 2 (SSES 1 and 2) - Extended Power Uprate Application Reactor Systems Technical Review Project stage: RAI PLA-6198, Proposed License Amendments 285 and 253, Extended Power Uprate Application Balance-of-Plant Safety Systems Request for Additional Information Responses2007-05-14014 May 2007 Proposed License Amendments 285 and 253, Extended Power Uprate Application Balance-of-Plant Safety Systems Request for Additional Information Responses Project stage: Request PLA-6210, Extended Power Uprate Application Vessels and Internals Integrity Technical Review Request for Additional Information Responses2007-05-21021 May 2007 Extended Power Uprate Application Vessels and Internals Integrity Technical Review Request for Additional Information Responses Project stage: Request PLA-6196, Proposed License Amendments 285 and 253, Extended Power Uprate Application Safety Related Pumps and Valves and Mechanical Equipment Environmental Qualification Review Request for Additional Information Responses2007-06-0101 June 2007 Proposed License Amendments 285 and 253, Extended Power Uprate Application Safety Related Pumps and Valves and Mechanical Equipment Environmental Qualification Review Request for Additional Information Responses Project stage: Request PLA-6200, Proposed License Amendment Nos. 285 and 253, Extended Power Uprate Application Mechanical and Civil Engineering Technical Review Request for Additional Information Responses2007-06-0101 June 2007 Proposed License Amendment Nos. 285 and 253, Extended Power Uprate Application Mechanical and Civil Engineering Technical Review Request for Additional Information Responses Project stage: Request PLA-6204, Proposed License Amendment Nos. 285 and 253, Extended Power Uprate Application Instrumentation and Controls Technical Review Request for Additional Information Responses2007-06-0101 June 2007 Proposed License Amendment Nos. 285 and 253, Extended Power Uprate Application Instrumentation and Controls Technical Review Request for Additional Information Responses Project stage: Request PLA-6212, Extended Power Uprate Application Materials and Chemical Engineering Technical Review Request for Additional Information Responses2007-06-0101 June 2007 Extended Power Uprate Application Materials and Chemical Engineering Technical Review Request for Additional Information Responses Project stage: Request PLA-6203, Proposed License Amendment Extended Power Uprate Application Containment and Ventilation Technical Review Request for Additional Information Responses, PLA-62032007-06-0404 June 2007 Proposed License Amendment Extended Power Uprate Application Containment and Ventilation Technical Review Request for Additional Information Responses, PLA-6203 Project stage: Request PLA-6225, Proposed License Amendment Nos. 285 and 253, Extended Power Uprate Application Supplement to Request for Additional Information Responses2007-06-0808 June 2007 Proposed License Amendment Nos. 285 and 253, Extended Power Uprate Application Supplement to Request for Additional Information Responses Project stage: Supplement PLA-6231, Proposed License Amendment No. 285 for Unit 1 and Proposed License Amendment No. 253 for Unit 2, Extended Power Uprate Application Electrical Engineering Technical Review Request for Additional Information Response Supplement, PLA-62312007-06-20020 June 2007 Proposed License Amendment No. 285 for Unit 1 and Proposed License Amendment No. 253 for Unit 2, Extended Power Uprate Application Electrical Engineering Technical Review Request for Additional Information Response Supplement, PLA-6231 Project stage: Supplement PLA-6230, Proposed License Amendment for Units 1 and 2, Extended Power Uprate Application & Supplement to Request for Additional Information Responses2007-06-27027 June 2007 Proposed License Amendment for Units 1 and 2, Extended Power Uprate Application & Supplement to Request for Additional Information Responses Project stage: Supplement PLA-6232, Proposed License Amendments 285 & 253, Extended Power Uprate Application Supplement to Operator Licensing & Human Performance, Health Physics & Piping and Nondestructive Examination Request for Additional Information Responses2007-06-27027 June 2007 Proposed License Amendments 285 & 253, Extended Power Uprate Application Supplement to Operator Licensing & Human Performance, Health Physics & Piping and Nondestructive Examination Request for Additional Information Responses Project stage: Supplement 2007-04-12
[Table View] |
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Category:Letter
MONTHYEARIR 05000387/20240022024-08-12012 August 2024 Integrated Inspection Report 05000387/2024002 and 05000388/2024002 ML24208A0962024-07-25025 July 2024 57243-EN 57243 - Rssc Wire & Cable LLC, Dba Marmon - Part 21 Notification PLA-8117, 23rd Refueling Outage Owners Activity Report (PLA-8117)2024-07-23023 July 2024 23rd Refueling Outage Owners Activity Report (PLA-8117) ML24197A0982024-07-15015 July 2024 Request for Information for a Biennial Problem Identification and Resolution Inspection; Inspection Report 05000387/2024010 and 05000388/2024010 PLA-8126, Response to Request for Confirmation of Information Regarding Relief Request 1RR062024-05-29029 May 2024 Response to Request for Confirmation of Information Regarding Relief Request 1RR06 ML24127A2262024-05-29029 May 2024 Issuance of Amendment Nos. 288 and 272 Adoption of TSTF-563 PLA-8122, Annual Radiological Environmental Operating Report (PLA-8122)2024-05-28028 May 2024 Annual Radiological Environmental Operating Report (PLA-8122) PLA-8115, Relief Request IRR06 One Time Extension to the Fourth 10-Year Inservice Testing Program Interval (PLA-8115)2024-05-23023 May 2024 Relief Request IRR06 One Time Extension to the Fourth 10-Year Inservice Testing Program Interval (PLA-8115) IR 05000387/20240012024-05-13013 May 2024 Integrated Inspection Report 05000387/2024001 and 05000388/2024001 IR 05000387/20244042024-05-0707 May 2024 Information Request for the Cybersecurity Baseline Inspection, Notification to Perform Inspection 05000387/2024404 and 05000388/2024404 PLA-8095, 2023 Annual Radiological Environmental Operating Report (PLA-8095)2024-04-22022 April 2024 2023 Annual Radiological Environmental Operating Report (PLA-8095) PLA-8101, Re 2023 Annual Report of Radiation Exposure2024-04-22022 April 2024 Re 2023 Annual Report of Radiation Exposure PLA-8094, Radioactive Effluent Release Report and Offsite Dose Calculation Manual PLA-80942024-04-22022 April 2024 Radioactive Effluent Release Report and Offsite Dose Calculation Manual PLA-8094 PLA-8102, Annual Environmental Operating Report (Nonradiological) PLA-81022024-04-11011 April 2024 Annual Environmental Operating Report (Nonradiological) PLA-8102 IR 05000387/20230042024-02-0707 February 2024 Integrated Inspection Report 05000387/2023004 and 05000388/2023004 PLA-8096, Response to Request for Additional Information Regarding Proposed Relief Request for the Fifth 10-Year Inservice Test Program Interval2024-01-0404 January 2024 Response to Request for Additional Information Regarding Proposed Relief Request for the Fifth 10-Year Inservice Test Program Interval PLA-8077, Emergency Plan Revision 67 (PLA-8077)2023-12-27027 December 2023 Emergency Plan Revision 67 (PLA-8077) IR 05000387/20230102023-12-11011 December 2023 Fire Protection Team Inspection Report 05000387/2023010 and 05000388/2023010 PLA-8089, Submittal of Revision to Inservice Testing Program Plan2023-12-0505 December 2023 Submittal of Revision to Inservice Testing Program Plan PLA-8084, Application to Revise Technical Specifications to Adopt TSTF-568, Revise Applicability of BWR TS 3.6.2.5 and TS 3.6.3.22023-11-29029 November 2023 Application to Revise Technical Specifications to Adopt TSTF-568, Revise Applicability of BWR TS 3.6.2.5 and TS 3.6.3.2 ML23345A0682023-11-28028 November 2023 Technical Specification Bases, Manual PLA-8091, Response to Request for Additional Information Regarding Proposed Relief Request for the Fifth 10-Year Inseervice Inspection Interval (PLA-8091)2023-11-0808 November 2023 Response to Request for Additional Information Regarding Proposed Relief Request for the Fifth 10-Year Inseervice Inspection Interval (PLA-8091) IR 05000387/20230032023-11-0303 November 2023 Integrated Inspection Report 05000387/2023003 and 05000388/2023003 PLA-8082, Proposed Amendment to Licenses NPF-14 and NPF-22: Application to Revise Technical Specifications to Adopt TSTF-563, Revise Instrument Testing Definitions to Incorporate the Surveillance Frequency Control Program2023-11-0202 November 2023 Proposed Amendment to Licenses NPF-14 and NPF-22: Application to Revise Technical Specifications to Adopt TSTF-563, Revise Instrument Testing Definitions to Incorporate the Surveillance Frequency Control Program ML23291A1132023-10-12012 October 2023 Submittal of Revision 71 to Updated Final Safety Analysis Report and Revision 25 to Fire Protection Review Report ML23279A0612023-10-0505 October 2023 Paragon Energy Solutions LLC, Part 21 Final Report Re Potential Defect with Eaton Jd and Hjd Series Molded Case Circuit Breakers (Mccbs) ML23277A0412023-10-0505 October 2023 Notification of Commercial Grade Dedication Inspection (05000387/2024011 and 05000388/2024011) and Request for Information IR 05000387/20233012023-09-20020 September 2023 Initial Operator Licensing Examination Report 05000387/2023301 and 05000388/2023301 ML23254A0242023-09-0606 September 2023 Paragon Energy Solutions LLC, Potential Defect with Eaton Jd and Hjd Series Molded Case Circuit Breakers (Mccbs) IR 05000387/20230052023-08-31031 August 2023 Updated Inspection Plan for Susquehanna Steam Electric Station, Units 1 and 2 (Report 05000387/2023005 and 05000388/2023005) ML23228A1952023-08-21021 August 2023 Summary of August 10, 2023, Public Observation Meeting Re. Proposed Alternative PLA-8080, Proposed Relief for Valve 251130 (PLA-8080)2023-08-14014 August 2023 Proposed Relief for Valve 251130 (PLA-8080) PLA-8074, Proposed Relief Request for the Fifth 10-Year Inservice Test Program Interval2023-08-0303 August 2023 Proposed Relief Request for the Fifth 10-Year Inservice Test Program Interval IR 05000387/20230022023-08-0101 August 2023 Integrated Inspection Report 05000387/2023002 and 05000388/2023002 ML23195A1852023-07-27027 July 2023 Correction to Technical Specifications Page 3.3-73 in Amendment No. 265 ML23201A0152023-07-20020 July 2023 Operator Licensing Examination Approval PLA-8076, Unit 2 - 21st Refueling Outage Owner'S Activity Report (PLA-8076)2023-07-20020 July 2023 Unit 2 - 21st Refueling Outage Owner'S Activity Report (PLA-8076) ML23200A1012023-07-19019 July 2023 Notification of Conduct of a Fire Protection Team Inspection ML23193A0062023-07-12012 July 2023 Requalification Program Inspection PLA-8078, Submittal of Unit 2 Cycle 22 Core Operating Limits Report, Revision 1, PLA-80782023-07-0505 July 2023 Submittal of Unit 2 Cycle 22 Core Operating Limits Report, Revision 1, PLA-8078 ML23163A1012023-06-12012 June 2023 10 CFR 50.46 Annual Report (Pla 8065) PLA-8054, Proposed Amendment to Licenses NPF-14 and NPF-22: Remove Control Rod Operability Separation Criteria and Replace Reference to Banked Position Withdrawal Sequence with the Analyzed Rod Position Sequence2023-06-0808 June 2023 Proposed Amendment to Licenses NPF-14 and NPF-22: Remove Control Rod Operability Separation Criteria and Replace Reference to Banked Position Withdrawal Sequence with the Analyzed Rod Position Sequence IR 05000387/20234012023-06-0707 June 2023 Security Baseline Inspection Report 05000387/2023401 and 05000388/2023401 PLA-8073, Proposed Relief Request for the Fifth 10-Year Inservice Inspection Interval2023-06-0101 June 2023 Proposed Relief Request for the Fifth 10-Year Inservice Inspection Interval PLA-8064, Response to NRC Regulatory Issue Summary 2023-01 (PLA-8064)2023-05-17017 May 2023 Response to NRC Regulatory Issue Summary 2023-01 (PLA-8064) PLA-8067, Notification of Completion of Emergence from Bankruptcy (PLA-8067)2023-05-17017 May 2023 Notification of Completion of Emergence from Bankruptcy (PLA-8067) ML23132A3212023-05-17017 May 2023 Associated Independent Spent Fuel Storage Installation - Issuance of Amendment Nos. 285 and 269 Related to Order Approving Transfer of Licenses IR 05000387/20230012023-05-12012 May 2023 Integrated Inspection Report 05000387/2023001 and 05000388/2023001 PLA-8066, Notification of Planned Closing Date and Information Identified in March 30, 2023 Order, PLA-80662023-05-0808 May 2023 Notification of Planned Closing Date and Information Identified in March 30, 2023 Order, PLA-8066 PLA-8053, Radiation Exposure Information and Reporting System2023-04-27027 April 2023 Radiation Exposure Information and Reporting System 2024-08-12
[Table view] Category:Request for Additional Information (RAI)
MONTHYEARML24150A3362024-05-29029 May 2024 Request for Confirmation of Information Relief Request 1RR06 (Proposed Alternative) Susquehanna Nuclear, LLC Susquehanna Steam Electric Station (Susquehanna), Unit 1 Docket No. 50-387 IR 05000387/20244042024-05-0707 May 2024 Information Request for the Cybersecurity Baseline Inspection, Notification to Perform Inspection 05000387/2024404 and 05000388/2024404 ML23334A1502023-11-30030 November 2023 NRC Request for Additional Information Re. Susquehanna Relief Request RR-02 ML23277A0412023-10-0505 October 2023 Notification of Commercial Grade Dedication Inspection (05000387/2024011 and 05000388/2024011) and Request for Information ML23013A2082023-01-13013 January 2023 Request for Additional Information ML22146A1022022-05-26026 May 2022 Information Request for the Cyber Security Baseline Inspection, Notification to Perform Inspection 05000387/2022404 and 05000388/2022404 ML22146A0742022-05-25025 May 2022 NRR E-mail Capture - NRC Request for Additional Information - Susquehanna License Amendment Request ML22111A3132022-04-21021 April 2022 NRR E-mail Capture - NRC Request for Additional Information - Susquehanna License Amendment Request ML22041A1562022-02-10010 February 2022 Information Request for a Triennial Baseline Design Bases Assurance Inspection (Team); Inspection Report 05000387/2022013 and 05000388/2022013 ML21316A1242021-11-18018 November 2021 Supplemental Information Needed for Acceptance of Requested Licensing Action Regarding Emergency Core Cooling Technical Specifications ML20056E4392020-02-21021 February 2020 Ti 2515/194 Inspection Documentation Request ML20010D2012020-01-0909 January 2020 Request for Additional Information Related to Request to Allow Application of Framatome Analysis Methodologies Necessary to Support a Planned Transition to Atrium 11 Fuel Under Maximum ML19319A0092019-11-14014 November 2019 NRR E-mail Capture - Draft RAI for SSES Units 1 and 2 LAR to Replace ESW Piping ML19319B1922019-11-14014 November 2019 NRR E-mail Capture - RAI for Susquehanna, 1 and 2 License Amendment Request - Replace the Emergency Service Water System and Residual Heat Removal Service Water System ML19128A0232019-05-0707 May 2019 Request for Additional Information: Susquehanna Steam Electric Station, Units 1 and 2 License Amendment Request for ESW Piping Replacement ML18352B1832018-12-13013 December 2018 Enclosurequest for Additional Information (Letter to K. Cimorelli Request for Additional Information Regarding Susquehanna Nuclear, Llc'S Decommissioning Funding Plan Update for Susquehanna Steam Electric Station Independent Spent Fuel Stor ML17180A2002017-07-0707 July 2017 Request for Additional Information Regarding License Amendment Request to Revise Diesel Generator Surveillance Requirements with New Steady State Voltage and Frequency Limits ML17059D2142017-03-0606 March 2017 Susquehanna Steam Electric Station - Supplemental Information Needed for Acceptance of Requested Licensing Action Re: License Amendment Request to Revise Diesel Generator Surveillance Requirements with New Steady State Voltage Frequency Limits ML16251A0652016-09-0909 September 2016 Susquehanna Steam Electric Station, Unit 2 - RAI Regarding Temporary Change of Unit 2, Technical Specifications 3.7.1 & 3.8.7 to Allow Replacement of Unit 1, 480 Volt Engineered Safeguard System Load Center Transformers(CAC No. MF7298) ML16245A2052016-09-0101 September 2016 Draft Request for Additional Information Replacement of Load Center Transformers ML16243A0952016-08-30030 August 2016 Draft Request for Additional Information Application for Approval of Indirect Transfer of Control of Licenses ML16060A2302016-03-24024 March 2016 Acceptance of Requested Licensing Action License Amendment Request for Temporary Change of Unit 2 Technical Specifications 3.71 and 3.87 to Allow Replacement of Unit 1 480V Ess Load Center Transformers ML15316A5632015-11-13013 November 2015 Request for Additional Information Regarding Proposed Relief Requests for the Third 10-Year Inservice Inspection Interval(Cac Nos. MF6302 Through MF6307) ML15292A1782015-10-15015 October 2015 TSTF-425 LAR Draft 3rd RAIs ML15230A0802015-08-26026 August 2015 Request for Additional Information Regarding License Amendment Request to Adopt NEI 99-01, Revision 6, EAL Scheme Change ML15209A9742015-08-24024 August 2015 Request for Additional Information License Amendment Request to Adopt Technical Specifications Task Force Traveler (TSTF)-425 ML15229A2002015-08-17017 August 2015 E-mail from J. Whited to J. Jennings SSES Draft TSTF-425 RAIs ML15230A0462015-08-17017 August 2015 Draft RAIs SSES EAL Scheme Change LAR in Accordance with NEI 99-01 Rev 6 ML15229A2092015-08-17017 August 2015 SSES Draft Request for Additional Information Licensee Request to Adopt TSTF-425 ML15183A3502015-07-0202 July 2015 SSES Relief Requests 3RR-19, 3RR-20, and 3RR-21 Draft Identified Information Insufficiencies (TAC Nos. MF6302 Through MF6307) ML15103A3962015-05-22022 May 2015 Request for Additional Information License Amendment Request to Adopt Technical Specifications Task Force Traveler (TSTF)-425 (TAC Nos. MF5151 and MF5152) ML15128A5162015-05-0808 May 2015 SSES Draft Request for Additional Information LAR for Implementation of TSTF-425 ML15128A5092015-05-0808 May 2015 E-mail from J. Whited to D. Filchner SSES Draft Request for Additional Information LAR for Implementation of TSTF-425 ML15008A4702015-01-30030 January 2015 Request for Additional Information Request to Revise Technical Specification 3.4.10, RCS Pressure and Temperature (P/T) Limits. ML15016A2742015-01-16016 January 2015 Draft RAIs License Amendment Request for Change to TS 3.4.10 P/T Limits (TAC Nos. MF4597 and MF45980) ML15016A2722015-01-16016 January 2015 E-mail from J. Whited to D. Filchner Draft RAIs License Amendment Request for Change to TS 3.4.10 P/T Limits (TAC Nos. MF4597 and MF45980) ML14343A9842015-01-0808 January 2015 Request for Additional Information Relief Request 4RR-01 ML14345A2412014-12-16016 December 2014 Request for Additional Information Request for Order Approving Indirect Transfer of Control and Conforming License Amendments ML14346A4022014-12-12012 December 2014 Draft RAIs Relief Request 4RR-01 ML14346A4012014-12-12012 December 2014 E-mail from J. Whited to D. Filchner Susquehanna Steam Electric Station Draft RAIs Relief Request 4RR-01 ML14346A1022014-12-12012 December 2014 Draft License Transfer Revised 2nd RAIs ML14346A1002014-12-12012 December 2014 E-mail from J. Whited to R. Sgarro Susquehanna Steam Electric Station Draft License Transfer Revised 2nd RAIs ML14342A8082014-12-0808 December 2014 E-mail from J. Whited to R. Sgarro (PPL) SSES Units 1 and 2 Draft RAIs Application for Approval of Indirect Transfer of Control of Licenses ML14342A8132014-12-0808 December 2014 SSES Units 1 and 2 Draft RAIs Application for Approval of Indirect Transfer of Control of Licenses ML14233A2772014-08-27027 August 2014 Request for Additional Information License Amendment Request to Change the Low Pressure Safety Limit ML14233A3392014-08-21021 August 2014 Draft RAIs for Susquehanna Steam Electric Station Units 1 and 2 License Amendment Request for Changes to the Low Pressure Safety Limits ML13298A7812014-03-0707 March 2014 Request for Additional Information Regarding Request for Changes to Technical Specification Surveillance Requirement 3.8.1.19 to Increase Diesel Generator Minimum Steady State Frequency (TACs ME9609. ML13298A7582014-03-0707 March 2014 Request for Additional Information Regarding Request for Changes to Technical Specification Surveillance Requirements to Increase Diesel Generator Minimum Steady State Voltage (TAC ME9607 and ME960) ML14013A1502014-01-31031 January 2014 Request for Additional Information Regarding Relief Requests for the Fourth 10-Year Inservice Testing Interval ML14024A4752014-01-24024 January 2014 Draft 4th IST RRs 1RR05 RAIs 2024-05-07
[Table view] |
Text
July 12, 2007 Mr. Britt T. McKinney Sr. Vice President and Chief Nuclear Officer PPL Susquehanna, LLC 769 Salem Blvd., NUCSB3 Berwick, PA 18603-0467
SUBJECT:
SUSQUEHANNA STEAM ELECTRIC STATION, UNITS 1 AND 2 - STEAM DRYER INFORMATION AND ANALYSES SUPPORTING THE EXTENDED POWER UPRATE (EPU) AMENDMENT REQUESTS (TAC NOS. MD3309 AND MD3310)
Dear Mr. McKinney:
By letter dated October 11, 2006 (Agencywide Documents Access and Management System Accession No. ML043270480), PPL Susquehanna, LLC (PPL, the licensee) submitted its request to amend the operating license for Susquehanna Steam Electric Station, Units 1 and 2 (SSES 1 and 2) to increase the maximum authorized power level from 3489 megawatts thermal (MWt) to 3952 MWt, an increase of approximately 13 percent in thermal power.
The purpose of this letter is to request supplemental information regarding steam dryer information and analyses supporting the ongoing EPU amendment request review. In support of the EPU review, you have met with the Nuclear Regulatory Commission (NRC) staff and submitted information regarding the steam dryer analyses. Most recently, on June 29, 2007, you met with the NRC staff and provided an overview of the steam dryer licensing and design approach, corrective action status, replacement steam dryer design overview, steam dryer instrumentation plan, and power ascension test plan/startup limits. In addition, on July 6, 2007, you submitted the updated stress analysis report for the SSES 1 and 2 replacement steam dryers.
During the public meeting on June 29, 2007, the NRC staff indicated that additional information is needed by the end of July 2007 for the staff to complete its review in a manner commensurate with its review schedule. The additional information to be submitted to the NRC staff are included in the enclosures to this letter. These questions were discussed with your staff during a teleconference on June 26, 2007, and during the June 29, 2007, meeting. As agreed to by your staff, we request you respond by July 31, 2007. Enclosure 1 includes proprietary information which is indicated in brackets and underlines. We have prepared a non-proprietary version of the questions (Enclosure 2) that does not contain the proprietary information of Enclosure 1.
Should any information needed for this review be received after July 31, the NRC staff notes that the scheduled EPU presentations to the Advisory Committee on Reactor Safeguards could be delayed from the current schedule of September-October 2007. The NRC staff requests that you inform us at the earliest opportunity of your plans to provide the information discussed above.
B. McKinney If you have any questions, please contact me at 301-415-1030.
Sincerely,
/ra/
Richard V. Guzman, Senior Project Manager Plant Licensing Branch I-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-387 and 50-388
Enclosures:
- 1. Request for Supplemental Information (Proprietary)
- 2. Request for Supplemental Information (Non-Proprietary) cc: See next page (w/o Enclosure 1)
Letter & RAI - ML071920490 Proprietary RAI - ML071920475 OFFICE LPLI-1/PM LPLI-1/LA EMCB/BC LPLI-1/BC NAME RGuzman SLittle KManoly MKowal DATE 7/11/07 7/12/07 7/11/07 7/12/07 Susquehanna Steam Electric Station, Units 1 and 2 cc: w/o Enclosure 1 Cornelius J. Gannon Bryan A. Snapp, Esq Vice President - Nuclear Operations Assoc. General Counsel PPL Susquehanna, LLC PPL Services Corporation 769 Salem Blvd., NUCSB3 Two North Ninth Street, GENTW3 Berwick, PA 18603-0467 Allentown, PA 18101-1179 Robert M. Paley Supervisor - Document Control Services General Manager - Plant Support PPL Susquehanna, LLC PPL Susquehanna, LLC Two North Ninth Street, GENPL4 769 Salem Blvd., NUCSB2 Allentown, PA 18101-1179 Berwick, PA 18603-0467 Richard W. Osborne Rocco R. Sgarro Allegheny Electric Cooperative, Inc.
Manager - Nuclear Regulatory Affairs 212 Locust Street PPL Susquehanna, LLC P.O. Box 1266 Two North Ninth Street, GENPL4 Harrisburg, PA 17108-1266 Allentown, PA 18101-1179 Director, Bureau of Radiation Protection Supervisor - Pennsylvania Department of Nuclear Regulatory Affairs Environmental Protection PPL Susquehanna, LLC Rachel Carson State Office Building 769 Salem Blvd., NUCSA4 P.O. Box 8469 Berwick, PA 18603-0467 Harrisburg, PA 17105-8469 Michael H. Crowthers Senior Resident Inspector Supervising Engineer U.S. Nuclear Regulatory Commission Nuclear Regulatory Affairs P.O. Box 35, NUCSA4 PPL Susquehanna, LLC Berwick, PA 18603-0035 Two North Ninth Street, GENPL4 Allentown, PA 18101-1179 Regional Administrator, Region 1 U.S. Nuclear Regulatory Commission Ronald E. Smith 475 Allendale Road General Manager - Site Preparedness King of Prussia, PA 19406 and Services PPL Susquehanna, LLC Board of Supervisors 769 Salem Blvd., NUCSA4 Salem Township Berwick, PA 18603-0467 P.O. Box 405 Berwick, PA 18603-0035 Manager - Quality Assurance PPL Susquehanna, LLC Dr. Judith Johnsrud 769 Salem Blvd., NUCSB2 National Energy Committee Berwick, PA 18603-0467 Sierra Club 443 Orlando Avenue Luis A. Ramos State College, PA 16803 Community Relations Manager, Susquehanna PPL Susquehanna, LLC 634 Salem Blvd., SSO Berwick, PA 18603-0467
SUSQUEHANNA STEAM ELECTRIC STATION, UNITS 1 AND 2 (SSES 1 AND 2)
EXTENDED POWER UPRATE APPLICATION REQUEST FOR SUPPLEMENTAL INFORMATION PPL SUSQUEHANNA, LLC DOCKET NOS. 50-387 AND 50-388 The Nuclear Regulatory Commission (NRC) staff has identified the following deficiencies which have not been adequately addressed in PPLs application for the NRC staff to complete its technical review:
- 1. In reference to the response to NRC staffs request for additional Information (RAI) 3 in letter PLA-6167 dated April 27, 2007, PPL is requested to clarify the following:
(a) PPL is requested to specify as to which dryer stress analysis will be used for developing the Unit 1 dryer instrumentation limit curves - those based on current licensed thermal power (CLTP) conditions with all four main steam lines (MSLs) open, or those based on slowly closing a single MSL. Although MSL strain gages will not be used to set limits for Unit 1 until 110.5% CLTP, PPL should submit interim limit curves for the MSLs prior to EPU approval, and compare the curves to current levels measured in the plant at original licensed thermal power (OLTP) conditions in order to review the approximate proposed increase in loading levels between CLTP and the extended power uprate (EPU).
(b) For Unit 1, PPL proposes to use the dryer instrumentation to check pressure, strain, and acceleration levels at 103.5% and 107% CLTP conditions, and then rely solely on MSL strain gage limit curves at 110.5 and 114% CLTP conditions. Since the dryer in Unit 2 is not instrumented, MSL strain gages will be monitored at all four steps (103.5, 107, 110.5, and 114% CLTP conditions), and not until the benchmarking of the stress analysis procedure is completed based on Unit 1 instrumentation at 107% CLTP. The benchmarked dryer stress analysis procedures and updated MSL limit curves shall be reviewed by the NRC prior to PPL proceeding to power levels higher than 107% CLTP in either Unit 1 or Unit 2. As such, PPL should provide a sufficient hold period at 107%
CLTP.
(c) PPL is requested to explain how it plans to use the Unit 1 steam dryer measurements in benchmarking of the stress analysis procedure.
(d) PPL is requested to explain the rationale for not using the Unit 1 steam dryer instrumentation to monitor stresses in the steam dryer for all four steps of power ascension to 114% CLTP. Operating experience shows that previous applications of an acoustic circuit analyses have determined pressure loads on steam dryers based on pressure fluctuation measurements in the MSLs caused by downstream sources in the steam lines. The licensee indicates in Attachment 10, Section 4.2.5.1 of their submittal, that the pressure pulses measured in the MSLs are generated by hydrodynamic sources.
Enclosure 2
The licensees application does not provide the technical justification to show that the acoustic circuit analysis is reliable in determining SSES steam dryer pressure loads caused by such hydrodynamic sources.
(e) The benchmarking of dryer stress analysis as discussed in (b) may not be adequate because it may not include loading due to significant acoustic resonance that might only take place at power greater than 107% CLTP. Discuss the benchmarking of the dryer stress analysis for loading above 107% CLTP.
- 2. (a) In the response to NRC staffs RAI 4 in letter PLA-6167 dated April 27, 2007, PPL supplies pressure time signals measured during the scale model testing (SMT) and inside the dead leg attached to line A (or D). The signals appear to be in phase, which supports the supposition of a standing quarter wavelength inside the dead leg.
However, PPL does not comment on why the normalized power spectral density (PSD) is lower at the end cap than at the midpoint of the dead leg (Figs A.19 to A. 29 of Continuum Dynamics Inc. (CDI) Report No. 05-32, March 2006). These results contradict those shown in Fig. 8.2 of the same report, which shows higher root mean-square (RMS) pressure at the end cap. PPL is requested to explain this disagreement in the reported results.
(b) PPL also refers to the turbulent eddies at the inlets of MSLs as the excitation source of the low frequency components (16 and 32 Hz). While this is a plausible excitation source, PPL neglects the possibility of flow excitation at the mouth of the dead leg.
Simple calculations based on f =16 Hertz (Hz), V = 153 fps, and 24 diameter pipe, gives a Strouhal number of about 0.21. This is close to the critical value for this geometry (see Figs. 12 & 13 of paper by Peters & Bokhorst 2000, Flow-excited pulsations in pipe systems with closed branches, impact of flow direction, in Flow-Induced Vibration, Balkema 2000). However, the geometry of the T-junction edge is crucial. PPL is requested to (1) evaluate this possible excitation source; (2) provide information on the geometry of the T-junction edge (sharp or rounded and at what radius); and (3) explain whether the geometrical details of the T-junction edges and the length of MSLA were properly modeled in the SMT study.
(c) In its response to RAI 4 (and RAI 31), PPL supplied more details on the MSL geometry. It seems that the lower strain gages on steam lines A and D are very close to (1) the T-junction at the mouth of the dead leg and (2) to a pressure node of the 16 Hz component. Concerning Item (1), PPL is requested to explain how it accounts for the effect of the pipe stiffening (being close to a T-junction) when relating the pipe strains to acoustic pressure. Regarding Item 2, the lower strain gages on Lines A and D are nearly blind to the 16 Hz component, which is the strongest dynamic loading on the dryer. Since PPL is planning to use MSL measurements to evaluate the dryer stresses for the last two steps of power ascension to EPU of Unit 1, the measurement accuracy and uncertainties of the lower strain gages should be reassessed. First, the lower strain gages are blind to the 16 Hz component and they are also close to the T-junction which influences the conversion factor. PPL is requested to explain whether the lower strain gages will be repositioned (away from the pressure node) or if additional strain gages will be installed on lines A and D (i.e., use a three-location measurement method for MSL pressures).
- 3. With regard to its response to NRC staffs RAI 9 in letter PLA-6167 dated April 27, 2007, PPL is requested to provide plots for each MSL at CLTP conditions which compare the PSDs of the unfiltered and filtered (where coherence between upper and lower MSL locations is used to compute coherent PSDs) conditions. The comparison should be on a common plot, with the two curves clearly distinguishable from each other or can be presented as 8 total plots - unfiltered data and filtered data at each strain gauge (8).
The unfiltered data should be shown prior to the removal of any exclusion frequencies.
- 4. In the response to NRC staffs RAI 10 in letter PLA-6167 dated April 27, 2007, [
].
PPL addresses the [
].
- 5. (a) In its response to NRC staffs RAI 13 in letter PLA-6167 dated April 27, 2007, PPL states that the ACM model used computes only the acoustic loads on the dryer. The loads acting on the Susquehanna dryer are primarily hydrodynamic in nature. In order to obtain a true representative load definition, the acoustic and hydrodynamic loads should be combined. This statement contradicts the foundation of CDI Report No. 06-22, Revision 0, September 2006. In this report, Hydrodynamic loads at OLTP, CLTP,
, CDI uses ACM to predict the hydrodynamic loads on the dryer. The first item in the conclusion section of this report, Page 40, states that the acoustic circuit analysis determines that steam dryer peak differential hydrodynamic loads at 113% OLTP power are less than 0.37psid. PPL should explain this apparent contradiction and, if necessary, revise CDI Report No. 06-22 so that it reflects what is measured. In addition, if the ACM methodology will be used to monitor dryer loads during power ascension from 107% to 114% CLTP, PPL should explain how the hydrodynamic loads will be assessed.
(b) In response to RAI 13(b), PPL refers to Section 6.3 of General Electric (GE) report GENE-0057-4166-R1-P for incorporation of the stress underprediction factor in the fatigue analysis of Susquehanna steam dryer. However, during the February 27, 2007, meeting, PPL informed the NRC staff that it does not plan to use GENE-0057-4166-R1-P in the design development of the SSES replacement dryers.
PPL is requested to clarify its use of the mentioned GE report in response to RAI 13(b).
- 6. (a) In its response to NRC staffs RAI 24(a) in letter PLA-6167 dated April 27, 2007, PPL is requested to provide a summary of the stress analysis report (bounding licensing case), for the replacement steam dryer. The summary should discuss the overall model, analysis assumptions, results, deviations from final geometry/as-designed finite element evaluation, and identification of relevant locations of high stress with respect to the allowable American Society of Mechanical Engineers code limit of 13,600 pounds per square-inch (psi). The summary should include specific discussion of the weld factors used in estimating the alternating stresses at the toes of the fillet welds when joining plates of equal and unequal thicknesses. The proposed bounding (or licensing) stress report should also identify as-built features which are not included in the interim finite element solution, and explain how those features are expected to decrease dryer stresses.
(b) In addition to toes of the fillet welds, the roots of the fillet welds are also susceptible to stress concentration and fatigue cracking. According to Hechmer and Kuhn, Fatigue Strength Reduction Factors for Welds Based on Nondestructive Examination, Journal of Pressure Vessel Technology, 1999, Vol. 121, pages 6-10, the fatigue strength reduction factor (FSRF) for the root of a fillet weld varies between 3 and 4. PPL is requested to explain how it accounts for the FSRF for the roots of the fillet welds in the fatigue analysis of the replacement steam dryer for Susquehanna Units 1 and 2.
(c) In its response to RAI 24(b) regarding stress underprediction factor, PPL refers to scale model testing. However, during the February 27, 2007, meeting PPL informed the staff that it does not plan to use the GE report [GENE-0000-0054-2552-01-P ((1/17th SMT)] or CDI report [05-32, Rev. 0 9 (1/6th SMT)] in the design development of the SSES 1 and 2 replacement dryers. PPL is requested to clarify its use of the mentioned GE and CDI report in response to RAI 24(b).
- 7. With regard to the response to NRC staffs RAI 26 in letter PLA-6167 dated April 27, 2007, confirm whether the visual dryer inspections at refueling outages will be performed following EPU approval to ensure pump vane passing frequency tones do not cause fatigue damage to the dryer.
- 8. From the review of PPLs responses presented in PLA-6176, it is not clear which dryer stress analysis will be used to define limit curves during power ascension: (1) analysis based on CLTP conditions, or (2) analysis based on slow closure of a single MSL.
Please clarify.
- 9. PPL is requested to submit limit curves for the replacement dryer and/or MSL instrumentation that will be monitored during power ascension for NRC review prior to constant pressure power uprate approval. The limit curves need to be substantiated by an updated dryer stress analysis report.
- 10. In the response to NRC staffs RAI 18 in Attachment 1 to PLA-6200, PPL notes that:
The interaction formula is a commonly used relationship of forces and moments that are applied to rotating equipment. Please specify the standard.
- 11. The NRC staff is considering license conditions and regulatory commitments for monitoring, evaluating, and taking prompt action in response to potential adverse flow effects as a result of EPU operation on plant structures, systems, and components (including verifying continued structural integrity of the steam dryer), and interacting with the NRC staff during power ascension, for SSES 1 and 2 if an EPU license amendment is approved. The staff considers license conditions and regulatory commitments similar to those placed on the Vermont Yankee nuclear power plant in the EPU license amendment issued on March 2, 2006, to also be appropriate for a Susquehanna EPU license amendment. PPL is requested to propose license conditions and/or regulatory commitments and indicate where those license conditions and regulatory commitments should be modified to reflect power ascension plans for SSES 1 and 2.